1634: [Usaco2007 Jan]Protecting the Flowers 护花 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 448 Solved: 276[Submit][Status] Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he retur…
1634: [Usaco2007 Jan]Protecting the Flowers 护花 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 885 Solved: 575[Submit][Status][Discuss] Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When…
因为交换相邻两头牛对其他牛没有影响,所以可以通过交换相邻两头来使答案变小.按照a.t*b.f排降序,模拟着计算答案 #include<iostream> #include<cstdio> #include<algorithm> using namespace std; const int N=100005; int n; long long ans,sum; struct qwe { int v,t; }a[N]; bool cmp(const qwe &a,c…
1634: [Usaco2007 Jan]Protecting the Flowers 护花 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 493 Solved: 310[Submit][Status] Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he retur…
题目描述 Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he returned, he found to his horror that the cows were in his garden eating his beautiful flowers. Wanting to minimize the subsequent damage,…
Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he returned, he found to his horror that the cows were in his garden eating his beautiful flowers. Wanting to minimize the subsequent…
